CMIN.... You are correct. Virtuoso and Preciso are the same except for the Micro feature on the Preciso. I just registered my Virtuoso so should soon know my gearbox status. I feel it's probably up to date, runs pretty smooth.

I don't doubt that ground coffee spoils faster than whole bean. But I question your "apples to coffee" analogy. Spoilage rates vary -- or do you only eat bread made from freshly ground flour? Unlike coffee beans, apples are protected by their skin. I'll bet most people would not eat an apple that was finely chopped and left in the open overnight. But I think that many would agree that medium ground coffee sealed in a bag overnight would be very drinkable. The shelf-life for an opened bag of ground coffee -- how long before 50% of people didn't like it -- is on the order of 2-3 weeks. Contrast that with a diced apple.

The usual expectation is that whole bean coffee is at its best for up to about two weeks. A drip grind exposes approximately 15-20 times the surface area as whole bean coffee. So if it's strictly a surface area phenomenon then overnight wouldn't necessarily be too long. But the standard dogma is that 15 minutes is the limit.

Pretty much ALL of your propositions are, IMO INCORRECT.Flour has NO relationship to coffee. The essences of coffee are lost in minutes, not hours, and I HAVE experimented with that for reasons I don't have time to get into."Many people agree"..nonsense. Prove it.2-3 weeks for an opened bag of coffee? On WHAT planet? Maybe one with no O2.

Please come here with facts, not conjecture. That fact that ground coffee stales at an alarming rate has been proven beyond all doubt by the most knowledgeable coffee experts world wide.That freshly ARTISAN roasted coffee, ground and stored a few days will be better than supermarket? Of course, as supermarket coffee is DRECK.

Pretty much ALL of your propositions are, IMO INCORRECT.Flour has NO relationship to coffee. The essences of coffee are lost in minutes, not hours, and I HAVE experimented with that for reasons I don't have time to get into."Many people agree"..nonsense. Prove it.2-3 weeks for an opened bag of coffee? On WHAT planet? Maybe one with no O2.

Please come here with facts, not conjecture. That fact that ground coffee stales at an alarming rate has been proven beyond all doubt by the most knowledgeable coffee experts world wide.That freshly ARTISAN roasted coffee, ground and stored a few days will be better than supermarket? Of course, as supermarket coffee is DRECK.

The fact that flour (or an apple) does not behave the same as coffee was exactly my point!

At 2-3 weeks 50% of people dislike the ground coffee in an opened bag (not an open bag -- you get the difference, right?) came from published work, not my conjecture. My opinions -- that most people would not like the apple but would drink coffee ground 8-12 hours previously -- were clearly labeled as such.

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